What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: pilot stated that while performing "touch and go" landings he heard a "click" during rollout of the last landing prior to the incident. After takeoff, he cycled the gear, it felt stiff, so he asked the tower to verify that he had three gear showing. He had three green lights, but wanted to be sure his gear was down. The tower verified the gear looked in the down position. He then landed long on the right runway. During rollout, before turning off the runway, the left gear collapsed and the aircraft veered to the left, and into the grass area between the runways. Inspection of gear mechanism showed left retraction tube (Mooney p/n 5242) was bent. This limited movement of gear linkage and would not allow the gear to lock down. The handle was locked in the down position and indicated "green".
As the FAA filed it
NARRATIVE: PILOT STATED THAT WHILE PERFORMING "TOUCH AND GO" LANDINGS HE HEARD A "CLICK" DURING ROLLOUT OF THE LAST LANDING PRIOR TO THE INCIDENT. AFTER TAKEOFF, HE CYCLED THE GEAR, IT FELT STIFF, SO HE ASKED THE TOWER TO VERIFY THAT HE HAD THREE GEAR SHOWING. HE HAD THREE GREEN LIGHTS, BUT WANTED TO BE SURE HIS GEAR WAS DOWN. THE TOWER VERIFIED THE GEAR LOOKED IN THE DOWN POSITION. HE THEN LANDED LONG ON THE RIGHT RUNWAY. DURING ROLLOUT, BEFORE TURNING OFF THE RUNWAY, THE LEFT GEAR COLLAPSED AND THE AIRCRAFT VEERED TO THE LEFT, AND INTO THE GRASS AREA BETWEEN THE RUNWAYS. INSPECTION OF GEAR MECHANISM SHOWED LEFT RETRACTION TUBE (MOONEY P/N 5242) WAS BENT. THIS LIMITED MOVEMENT OF GEAR LINKAGE AND WOULD NOT ALLOW THE GEAR TO LOCK DOWN. THE HANDLE WAS LOCKED IN THE DOWN POSITION AND INDICATED "GREEN".